Patient safety progress is dynamic, consistently producing evidence for application to generate improvements. This report is the fourth in a series funded by the Agency for Healthcare Research and Quality to track a prioritized set of emerging and existing safety approaches to confirm their value and effectiveness. This report will be compiled as new conclusions are formulated. Each review will be posted to the collection as they are completed. The first three Making Healthcare Safer reports, published in 2001, 2013, and 2020, have each served as a consolidated evidence source for clinicians, health system leadership, researchers, and government agencies. Chapter protocols and a summary of the first year's set of reports are available.